Beef-carcass-splitting machine



Aug. 21, 1923.

J. S. HiJNTER BEEF cARcAss SPLITTING MACHINE Filed Feb. v1, 1922 Aug. 2,923.

J. S. HUNTER BEEF GARCAssy SPLITTING MACHINE Filed Feb. l. 1922 2Sheets-Sheet 2 Patented ug. 21, 1923.

JOHN STANLEY H UNTER, OF MANLY, NEW SOUTH WALES, AUSTRALIA. i

BEEF-CARCASS-SPLITTING IVIACHINE. v

Application led February To @ZZ whom t may @mi cern.'

Be it known that I, JOHNy STANLEY HUNTER, a subject of the King of GreatBritain and ireland, residing at 24 Pine Street, Manly, in the State ofNew South viating the bringing of all carcasses to one,

location in the building. A further object of 'the invention is toprovidea machine in which the plane of the circular saw may be turned inVeither direction to any point of the compass. l Y

A further object of the invention is to provide a machine occupying aminimum amount of floor space, requiringno. levers or counterweights tobalance the saw frame, and in which the feed of the saw is effected,

by gravity.

A further object of the' invention is to` provide a machine in which thesaw lis arranged to cutinto the back of the carcass and through bothaitchbone and scrag, andI in which the operator stands behind the saw.

A still further object of the invention is to provide a machine whichm-ay be Aeasily operated by one person.

The invention consists. in various novel features and combinations ofparts as will` be ascertained from the following descriptionand whichare particularly specied in the appended claims.V

Reference is here made-to the accompanying drawings -which depictbeef-carcass splitting machine construction according to my invention,and in which--V I Fig. l is a side view and Y Fig. 2 a back view of themachine, Fig. 3 a detail in perspective of braking gear and part of thelifting mechanism,

F ig. 4 a perspective view Vof a tubular Vviewed from the front ofthemachine,

Another object Vis i, i922'. serial m5533353;

king boltfand electric connections thereon and associated therewith,fV

Fig. 5 a plan online 5.5 Yof Fig. v2 i Fig. 6 -a'perspective detail offriction clutch operating mechanism, the parts being shown separated forthe' sake of clear- 'Y ness of illustration,

Fig.. 7 a perspective viewvof a-trolley" pole plate with three polesattached thereto and with rollers respectively engaging three trolleywires, ,and

Fig. 8 a plan on line 8.8 of Fig; 2.

It is to be understood that the construction illustrated and describedis explanatory only and is not to be taken as limiting my invention, assame maybe varied vin' anyl suitableU and convenient Y, manner fallingwithin the scope of the appended claims.

ln the drawings I have shown threeztrolley wires 10 and, three'trolleypoles. l1 and rollers l2 respectively engagingsaid wires, thisarrangement permitting the employment of either an A.C. 0r D. C. motoras will be well understood. Y y .5 Y

Said trolley poles are attached in known manner as shown in Fig. 7 toaplater 13 Y ed in known manner from the roof 0r ceiling of thebuilding'or chamber in which) the machine is installed.

Secured te the'lower `portionofthe c arriage 14 is a suspension plate 17in whichV is rotatably mounted a tubular king-bolt 18 fitted at'itsupper end with nuts '1 9 which support the load of suspended parts ihereinafter described, and abovesaid nuts are insulated currentcollectingV rings'20,

Y aiiiXed on aninsulating Vtube 21 screwed on 1 to the top of the kingbolt (see iFig. 4).

lContactin@ with said rings rare brushes 422 'cirriedon a fixed spindle23 and respectively connectedfby leads Y24e tojthe trolley poles inknown manner."v A

The lower endof the king 'bolt screws Vinto a cross beam Y26 and isterminally fitted with a lock nut 2'?.

f The cross beamY 26l bridges'the space be,v

tween and is attached tothe upper horirental members 28 of a t'opframecomposed of structural angle steel and comprising four main verticalmembers 29,A two lower` horizontal Vmembers 30, two intermediatehorizontal members 3l, and two short vertical members 32 joiningcorresponding ends of the horizontal members and 3l. Under the ends ofmembers 30 is attached an angle bar 33. The rods 2Oa connect thehorizontal members 28, and a tie rod 29` the lower ends of the verticalmembers 29.

The manner of jointing up the various members of the top frame inventionneed not be further described, as same may be done in any suitablemanner as by riveting7 bolting or welding.

From the ends of this angle bar 33 depend a pair of inwardly inclinedsta-y rods 34 attached at their lower ends to a fixed bottom frame 35consisting of an angle piece bent to substantially U form as shown inFig. 5.

Fou/r rigid parallel and vertical guide rods 36 extend between thebottom frame 35 and the lower horizontal members 30 of the Y top frame.their respective bottom and top sal ends being secured in said elements.Said guide rods also serve to support the bottom frame in a horizontalposition.

Slidably mounted in the guide rods 36 so as to be movable vertically isan intermediate frame 37 of the form and construction shown in Fig. 8and comprising a pair of horizontal side members 38 oined at their rearends by a cross member 39 `jointed to said side members by angle piates40. Qn this frame is transversely mounted a spinrdle 4l onwhich issecured in any suitable manner a circular semicircular guard 43terminally attached to upper stays 44-and a lower U shaped stay 45, saidstays being secured to the side `members 38 ofthe fra/me.

Supported in the upper frame in an electric motor 46. and onrthearmature shaft thereof is a bevel gear 47 meshing` with a gear 48 fixedon a vertical side shaft 49 rotatably carried in bearings 50 on theupper frame and in a bearing 5l on the lower frame 35.

On said side shaft 49-is a bevel gear 52 held in engagement with a'bevel gear on the saw spindle41 by means of a forked arm 54 projecting'from the saw frame 37 said forked arm' engaging an annular groove in theboss of gear 52 in known manner. Said `gear 52 is caused to rotate withshaft 49 by means of a feather in'its bore en- Vgaging a featherway cutlongitudinally in the shaft 49 and extending the full lengthof'theptravelof frame 37. so that said gear 52 is free to Vmovevertically 'with said frame. This is known mechanical construction and"need n otfibe further described.

Ther saw frame 37 s suspended by of'ropes 54 terminally attached to theup-y per frame. reeving through pulleys 55 pivotally mounted on brackets56 on the saw frame', and at their other ends attached to sawV 42protected by a.

63 carrying at one end a worm V64 registersl ing with the worm wheel 59on shaft 58. and at the other end a friction clutch member 65.

Said clutch member 65 co-operates as hereinafter explained with acomplementary clutch member 65a affixed on the side shaft 49.

The plate has through it a transverse circular hole 66 in which takes aneccentric. Sheave 67 lon. a spindle 68 having bearing in thelongitudinal members 3l of the upper frame (see Fig'. 6) and rotatableby means of a. handrope 69 secured to a pulley 70 mounted on the end ofsaid spindle 68. The rotation of said spindle is limited by 'stopsconstituted by a bell crank afiixed on Yment with worm wheel 59 Vandfriction clutch member does not contact'with the complementary member65a. By pulling on rope 69 sufficiently to turn the shaft one quarterof. a circle and bringing' stop arm` 72 into contact with frame member31. the eccentric sheave is turned upwardly and the plate 60 with shaft63 is raised thus eitectin .cfV engagement of clutch members 65 and 65?1and of worm 64 and worm wheel 59. The shaft of motor 46 is thus gearedto the winding shaft 58 and rotation of the latter winds the littingropes on the drums 57 and raises the saw platform 37.

Then the desired elevation is reached the motor is stopped andthe sawframe held by means of brake gear manually or automatically actuatedbythe operator ror machine. This brake near (see Fig. 3) comprises abrake drum 'T3 affixed on the winding;rv shaft 58, a brake shoe 7 4pivoted to o'ne of the vertical.' members 29 of the upper frame andbearing' on said brake drum. fit

the free end of the shoe a doubly horned plate 75 projects to which areattached a pair of tension springs 76 connected at'their other ends to adoubly horned nut 77 on the end of a bracket 78 attached to angle bar 33on the upper frame. screwing; through said nut 'is a vertical spindle 79ter-y minally provided with a' hand wheel 80, and

carrying a lined collar8l1. The upper end of the spindle passesfreelythrough the horned plate T and between said plate and said collar Sl isa coil' spring S2 acting. in vopposition Vto springs T6. f Torelease'tlie brakeshoe the spindle 79 is verticallyscrewed upwardlythrough the nut 77 until spring 82 is couipressed sufficiently toovercome Ythe tension of springs 76, while by .sc'fr'ewing spindle 79 inthe reverse direction the tension of spring S2 is relaxed and springs TGapply the brake. This arrangement of springs provides an extremelysensitive and gentle though powerful brake 'actioiiq-f TheV electricalconnections required for the...

Y through al pulley 88. a counterbalance 89 being suspended in the bightthus formed; The switch is actuated by a vertical rotatable handle l90carrying on its upper end aplever 91 which is connected by a link 92 toa lever i 93 on the switch, said lever 93 being attached to a spring 94by'which it is returned to off position. It will thus be seen thatshould the operator release the handle 90 current is immediately cut offfrom the motor and the saw will cease to rotate. Leads 96 connect theremote control apparatus and the motor.

At the base of the guide rods 36 coil springs 95 are provided to cushionthe drop of the saw frame should same descend too far or too fast. Y

Handles 96. upstanding from the sawframe afford convenient means wherebythe whole of the suspended parts of the machine may beturned sothatthesaw vris properly presented to the carcass to be operated upon.

That I claim and desire Yto secure by Letters Patent is Y l l. In abeef-carcass splitting machine, in combination. a. travelling carriage,an upperzframe suspended therefrom and capable of rotating in ahorizontalplane,` an electric motor carried on said upper frame, a lowerframe suspended' and distanced Jhom said upper frame, guiding meansVextending be*- tween said upper and lowerframes, an in-y termediateframe slidable in said guiding means, a circular saw on a spindlemounted horizontally lon said intermediate frame, means forconveying andcontrolling. electric current to said motor, controlled means operatedby the motor for moving said intermediate frame verticallyin onedirection,

and gearing between thelshaft of said motor and the saw spindlef` f .2.In aY beef-carcass splitting machine, in

combinatioma travellingcarriage, a frame Y suspendedtherefrom andVrotatable in a horizontal plane, an electric motor on said frame,

f vertical guides pendent from said"frame,V a saw-frame verticallymovable on said guides, controlled `"means operated by the motor formoving` said saw frame vertically in yone direction, and gearing betweenthe shaft of the motor and the saw spindle. j

3. In a4 beef-carcass splittingfmacliine, in combination, a` framerotatable in ai horizontal plane and Vsu'spended'frfom fa j travel- 'vling carriage, verticalguides pendent from I said frame, a. saw framevertically slidable in said guides, Ya circular saw iixedronfahorizontal `spindle rotatably ymountedxin saidsaw frame, controlledmeans@ operated y by'th'emotorfor vvertically moving-said saw if framein one direction, avertical side sliaftf rotatable in bearingsandrgearedto the shaft of saidmotor,1and a gea-r wheel rotating' withbut slidable axially onsaid side shaftY "and meshing with acomplementary gear onV Vthesaw spindle.

4. In a beef-carcass splitting machine which includesV an uppermotonearrying frame rotatably suspended from a travelling carriage and acircular saw frame mov# able vertically in guides below said upperframe, means forV lifting said Vsaw framef said. means comprising incombination ropes attached at Vone end to said saw iframe,a`

winding shaft rotatably Vmounted on said upper frame, winding drums onsaid sha-ft.

and clutch lgearing between the shaft of said motorl and said windingshaft.

`5. In; a .beef-carcass splitting machine -which includes an upper motorcarrying frame rotatably suspended from a travelling carriage andacircular saw frame -movable vertically. in guides-below said upperframe, means for lifting said saw frame, said means comprisingincombination ropes attachedat one end to said saw. frame, a winding shaftrotatablyV mounted.. on saidv upper. frame, winding'drums on said shaft,a worm wheel on said windingfshafn a rotatable spindle mounted tooscillatelengthwise, a worm on said spindle, a friction clutch. memberron said` spindle, a complementaryV friction clutch member geared to theshaft of the motor, and releasable means for oscillating y saidspindlelengthwise to bringl said worm into engagement with the wormwheel and the clutch members .intol mutual engage- Y ment.

which a vertically movable circular saw fra-me is suspendedbelow ahorizontally ro- .l l6. In a beef-carcass splitting machine in ropesengaging winding' drums on a shaft rotated by the motor, braking means`tor releasably retaining said saw frame in raised position. saidbraking means comprising in Combination a brake' drum on saidwindingshaft, a brake block normally spring pressed into contact withsaid brake drum, a spindleY a switch in said connections, a lower framesuspended and distanced from said upper frame, vertical parallel guidesextending between said Vupper and lower trames,v a saw-frame verticallysliding in said guides between the upper and lower frames, a circontact,and a cushioning cular saw on aV spindle rotatably mounted` in saidsaw-frame, l a Vertical side Vshaft geared to the shaft of said motor,2gearing between said shaft and saw spindle, lifting ropes attached tosaid saw frame, and connected to winding drums fixed on a rotatable`wheel on said winding shaft, a spindle oscilklatable lengthwise androtatably mounted on said upper frame, a worm on one end of 'saidoscillatable spindle registering with said worm wheel, a friction clutchmember on the other end of the same spindle, a complementary frictionclutch member on said side shaft, means Jfor actuatingr saidoscillatable spindle to bring said worm and worm gearA and clutchmembers respectively into engagement, and braking means operating;` tokreleasably retain the saw frame in any position, 'all combinedconstructed and .arranged substantially as described.

Signed at Sidney N. S. W. this nineteenth day of December A. D. 1921.

' JOHN STANLEY HUNTER.

V winding shaft on said upper trame, a worm f

